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* [Bug middle-end/34241] New: ICE in forward_propagate_into_cond
@ 2007-11-27 1:26 mueller at gcc dot gnu dot org
2007-11-27 13:01 ` [Bug middle-end/34241] " rguenth at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: mueller at gcc dot gnu dot org @ 2007-11-27 1:26 UTC (permalink / raw)
To: gcc-bugs
inline void *operator new (unsigned int, void *__p) throw ()
{
return __p;
}
struct A
{
A(int, double);
inline explicit A (int pattern, bool cs)
{
new (this) A (pattern, double(cs));
}
};
A test ()
{
const A a (42, true);
}
(gdb) bt
#0 get_prop_source_stmt (name=0xb7c5d478, single_use_only=0 '\0',
single_use_p=0xbfdc018b "")
at ../../gcc/tree-ssa-forwprop.c:221
#1 0x08328d58 in forward_propagate_into_cond (cond_expr=0xb7bca7d0,
stmt=0xb7bca7d0)
at ../../gcc/tree-ssa-forwprop.c:378
#2 0x0832b5be in tree_ssa_forward_propagate_single_use_vars ()
at ../../gcc/tree-ssa-forwprop.c:1021
#3 0x0824a963 in execute_one_pass (pass=0x8727e80) at ../../gcc/passes.c:1118
#4 0x0824aaff in execute_pass_list (pass=0x8727e80) at ../../gcc/passes.c:1171
#5 0x0824ab12 in execute_pass_list (pass=0x8727840) at ../../gcc/passes.c:1172
#6 0x0824aeec in execute_ipa_pass_list (pass=0x8727800) at
../../gcc/passes.c:856
#7 0x083e6d25 in cgraph_optimize () at ../../gcc/cgraphunit.c:1339
#8 0x0809198d in cp_write_global_declarations () at ../../gcc/cp/decl2.c:3442
#9 0x082bf163 in toplev_main (argc=4, argv=0xbfdc0424) at
../../gcc/toplev.c:1055
#10 0x08121b7f in main (argc=Cannot access memory at address 0x7
) at ../../gcc/main.c:35
the stmt where the def is NULL is:
<ssa_name 0xb7c5d478 nothrow var <var_decl 0xb7bc9bb0 iftmp.0>
version 3 in-free-list>
--
Summary: ICE in forward_propagate_into_cond
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: critical
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mueller at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34241
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/34241] ICE in forward_propagate_into_cond
2007-11-27 1:26 [Bug middle-end/34241] New: ICE in forward_propagate_into_cond mueller at gcc dot gnu dot org
@ 2007-11-27 13:01 ` rguenth at gcc dot gnu dot org
2007-11-27 13:01 ` rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-11-27 13:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2007-11-27 13:01 -------
Mine.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2007-11-27 13:00:55 |2007-11-27 13:01:08
date| |
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34241
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/34241] ICE in forward_propagate_into_cond
2007-11-27 1:26 [Bug middle-end/34241] New: ICE in forward_propagate_into_cond mueller at gcc dot gnu dot org
2007-11-27 13:01 ` [Bug middle-end/34241] " rguenth at gcc dot gnu dot org
@ 2007-11-27 13:01 ` rguenth at gcc dot gnu dot org
2007-11-27 13:12 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-11-27 13:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2007-11-27 13:00 -------
Confirmed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-11-27 13:00:55
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34241
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/34241] ICE in forward_propagate_into_cond
2007-11-27 1:26 [Bug middle-end/34241] New: ICE in forward_propagate_into_cond mueller at gcc dot gnu dot org
2007-11-27 13:01 ` [Bug middle-end/34241] " rguenth at gcc dot gnu dot org
2007-11-27 13:01 ` rguenth at gcc dot gnu dot org
@ 2007-11-27 13:12 ` rguenth at gcc dot gnu dot org
2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-11-27 13:12 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2007-11-27 13:12 -------
I have a patch. The expected result is to optimize
<bb 2>:
a.1_1 = (struct A *) &a;
<<<change_dynamic_type (struct A *) a.1_1)>>>
D.1744_2 = a.1_1;
iftmp.0_3 = (struct A *) D.1744_2;
if (iftmp.0_3 != 0B)
goto <bb 3>;
else
goto <bb 4>;
<bb 3>:
D.1746_4 = 1.0e+0;
__comp_ctor (iftmp.0_3, 42, 1.0e+0);
<bb 4>:
return;
to
<bb 2>:
a.1_1 = (struct A *) &a;
<<<change_dynamic_type (struct A *) a.1_1)>>>
iftmp.0_3 = (struct A *) &a;
D.1746_4 = 1.0e+0;
__comp_ctor (iftmp.0_3, 42, 1.0e+0);
return;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34241
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/34241] ICE in forward_propagate_into_cond
2007-11-27 1:26 [Bug middle-end/34241] New: ICE in forward_propagate_into_cond mueller at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-11-27 13:12 ` rguenth at gcc dot gnu dot org
@ 2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-11-27 15:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2007-11-27 15:01 -------
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34241
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/34241] ICE in forward_propagate_into_cond
2007-11-27 1:26 [Bug middle-end/34241] New: ICE in forward_propagate_into_cond mueller at gcc dot gnu dot org
` (3 preceding siblings ...)
2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
@ 2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-11-27 15:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2007-11-27 15:01 -------
Subject: Bug 34241
Author: rguenth
Date: Tue Nov 27 15:00:37 2007
New Revision: 130468
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130468
Log:
2007-11-27 Richard Guenther <rguenther@suse.de>
PR tree-optimization/34241
* tree-ssa-forwprop.c (forward_propagate_addr_expr): Make sure
to only delete real conversion chains.
* g++.dg/torture/pr34241.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr34241.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-forwprop.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34241
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2007-11-27 15:01 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-11-27 1:26 [Bug middle-end/34241] New: ICE in forward_propagate_into_cond mueller at gcc dot gnu dot org
2007-11-27 13:01 ` [Bug middle-end/34241] " rguenth at gcc dot gnu dot org
2007-11-27 13:01 ` rguenth at gcc dot gnu dot org
2007-11-27 13:12 ` rguenth at gcc dot gnu dot org
2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
2007-11-27 15:01 ` rguenth at gcc dot gnu dot org
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